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To use the calibration information in e.g. python, one there are at least three useful methods:

  • One can either read the file using numpy.loadtxt() and reshape the resulting array,

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  •    To do the former, it's simplest to cd to the relevant directory (or carefully point to the path) and do what's in ~philiph/psana/detdaq21/epix10ka/dumpPedRms.py.  To do the latter,
  • One can use psana tools to directly access the data files, see e.g. /cds/home/p/philiph/psana/./mfxc00118/cpo/junk.py.
  • Or in a psana script one can retrieve calibration information from a detector object using det.pedestals() or det.gain().


In LCLS-II, ...